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Storytelling With Large Format 相机

在电影叙事中使用大画幅摄像机有很多优势,现在已经很清楚了, 更好的靠近, better view angles, a beautiful separation between actor and background, and overall a camera that has better attention to detail.

相机 like ARRI’s ALEXA迷你低频, 这将把大尺寸传感器提升到一个全新的水平,使其具有更紧凑的版本.

更小巧的相机意味着DP的用户可以在拍摄时选择更有创意的方式来使用和移动相机.

Not too long ago large format cameras where thought to be a fad, 一些人提出了这样的问题,比如数据的增加在经济上和艺术上是否值得?

但现在,成功的电影都是部分或全部使用全画幅传感器拍摄的,毫无疑问,大画幅已经在大型广告拍摄和电影中占据了一席之地.

What are Large Format 相机?

When talking about cameras in cinema and photography, 术语“大画幅”指的是记录大于4 × 5英寸图像的相机.

大画幅相机的主要优点是其令人难以置信的图像分辨率.

一个4 × 5英寸的图像的成像面积大约是35mm相机的16倍,因此总分辨率是16倍.

4 × 5英寸是最常见的大画幅相机,但现在已经生产出可以捕捉20 × 24英寸及以上任何地方的图像的相机.

捕捉显著详细的图像是什么大格式相机的全部. 使用50mm镜头在65mm格式的相机上产生的浅深度和清晰的图像相当于在35mm格式上使用25mm镜头.

不必使用广角镜头拍摄更详细的广角镜头和看到更多的框架是特点和光学维持时使用更紧凑的50mm镜头拍摄它的方式.

使用大画幅电影相机ARRI Alexa Mini LF和50mm镜头创造了一个更自然可爱的感觉,更好的图像聚焦,在阴影和高光的额外细节,电影摄影师一直在寻找在数码相机电影摄影.

DP患者一直在使用旧镜片来达到类似的效果, using anamorphics, getting flaring in and even adding atmospherics but to no avail. Before seeing the amazing results of the large format cameras, DP的恐惧和担心电影体验会变得过于干净和锐利,就像早期的数码相机一样.

 

Large Format Cinema 相机 Raise in Trend 

 

LF-camera-trends

 

 

It’s believed that the trend started in 2015 with “The Revenant,” a movie for which DP Emmanuel Lubezki won his third Oscar. 大约40%的电影是用Arri Alexa 65拍摄的,这是一个大画幅相机.

When the Alexa 65 debuted in 2014, a big question among DPs was whether such a high-resolution, 对于消费内容的用户来说,数据丰富的图像是必要的,甚至是需要的.

The camera’s sensor has larger than usual active-imaging area, even larger than the film gate in the original ARRI 65mm film camera, and drastically larger than a 35mm film frame, a standard in the industry for many years.

Today, those concerns appear to have dissolved away. 大画幅相机的支持者们表示,大画幅相机之所以取得成功,是因为它更能让人沉浸其中,而且更接近人类的视觉.

 

Large Format Gives Actors More Room For Expression 

 

Large-format-cinematography

 

During an ARRI masterclass on Large Format Cinematography, DP James Laxton带领观众通过一个酒吧场景,他解释了大画幅相机在典型场景中的独特优势.

According to Laxton, there has been talk that actors don’t like high-resolution cameras, 尤其是年长的演员,他们可能会对自己的风化特征更有自我意识. 但在他看来,高分辨率相机实际上给了演员更多的空间来表达自己.

Laxton continues on saying, If you set a Super 35 camera in the exact spot as a large format camera, with identical lenses and same distance from the actor, the Super 35 frame will box in the actor and limit their movement. 拉克斯顿觉得博电竞app让演员坐在椅子上或在一个精确的位置上是一种耻辱, and tell them not to move.

相比, when you’re shooting with an Large Format 相机 like the ALEXA 65, 例如, 你打开了演员周围的空间,给他们更多的空间来自由移动和表达自己. All while keeping the desired focal length and perspective.

但为什么不只是移动相机向前或向后,以匹配帧, while using the same lens? Laxton suggests that the distance to the subject is extremely important.

他说,相机和镜头与拍摄对象之间有一定的距离是很独特的, it provides a perspective, that you may not want to change by physically moving closer or farther away.

大画幅相机可以让摄影师创造出他们想要的那种感觉, with the same depth, 但当演员在画面中保留更多空间来讲述更大的故事时.

 

ARRI’s Large Format Cinema 相机

 

ALEXA迷你低频

ALEXA迷你低频是ARRI最新的LF相机,具有同样的大25.54 x 36.70 mm size sensor as the ALEXA低频.

The sensor is a bit larger than the traditional 24 x 36 full-frame sensors. In terms of specs, the maximum resolution available is 4.5K (4448 x 3096 ) at up to 40 frames per second.

如果你需要更高的帧率,你可以在2K分辨率下达到每秒90帧.

You get all this in a very compact case, mini LF的尺寸和尺寸和ALEXA mini差不多,除了相机左侧的媒体舱.

As always with ARRI cameras the colors are natural, skin tones look beautiful and the highlights roll-off is smooth. 你甚至可以在高动态范围和宽色域场景下使用Mini LF.

Shot With ALEXA迷你低频:

  • 1917 (2019) First movie shot entirely with the ALEXA迷你低频

ALEXA MINI LF Footage:

 

 

ALEXA低频

 

 

 

ALEXA低频相机系统ARRI Signature Prime镜头,LPL镜头架和pl -LPL适配器.

使用比全帧略大的传感器,ALEXA低频相机记录本机4.5K with ARRI’s best overall image quality.

这款相机为电影制作者提供了高度期望的大画幅外观,同时保留了传感器的自然色度, pleasing skin tones and stunning capability for HDR workflows.

Shot With ALEXA低频:

  • 小丑(2019)
  • Designated Survivor (2016-2019)

ALEXA低频 Footage:

ALEXA 65

The ALEXA 65 相机 is available exclusively through ARRI 租赁. Offering a complete large-format solution for high-end motion pictures, television productions and commercials, the system comprises a 65 mm digital cinema camera, custom-designed prime and zoom lenses, 和快速, efficient workflow tools.

Before the resent burst in Large format camera releases, ALEXA 65是不喜欢数码和忠于胶片相机的DP的相机,因为它的大传感器给这个数码相机一个大格式的胶片看.

 

Shot with ALEXA 65:

  • Solo: A Star Wars Story (2018)
  • 小丑(2019)
  • If Beale Street Could Talk (2018) …
  • Bohemian Rhapsody (2018) …
  • Live by Night (2016) …
  • War for the Planet of the Apes (2017) …
  • The Girl in the Spider’s Web (2018) …
  • Dogs of Berlin (2018)
  • Passengers (2016)
  • 黑色(2017)
  • Altered Carbon (2018)
  • 亮(2017)
  • Doctor Strange (2016)
  • Assassin’s Creed (2016)
  • 老板(2016)
  • The Huntsman: Winter’s War (2016)
  • Rogue One: A Star Wars Story (2016)
  • Allegiant (2016)
  • Captain America: Civil War (2016)
  • How to Be Single (2016)
  • 斯诺登(2016)
  • The Revenant (2015)
  • 幽灵(2015)
  • Mission: Impossible – Rogue Nation (2015)

 

ALEXA 65 Footage:

 

 

ARRI Large Format 相机 Specifications

ALEXA MINI LF SPECS

传感器大小:36.7 x 25.54

Max Resolution: 4448 x 3096

Media: Codex Compact Drive

编解码器:ARRIRAW, ProRes, 4444 XQ

Max FPS: 40 (in Max Res)

DR: 14.5停止

Data Rate: 500 MB/s

ALEXA低频规格

传感器大小:36.7 x 25.54

Max Resolution: 4448 x 3096

Media: SXR Drive

编解码器:ARRIRAW, ProRes, 4444 XQ

Max FPS: 90 (in Max Res)

DR:14.5停止

Data Rate: 500 MB/s

ALEXA 65规格

传感器尺寸:54.12 x 25.58

Max Resolution: 6560 x 3102

媒体:XR开车

编解码器:ARRIRAW

Max FPS: 60 (in Max Res)

博士:14停止

Data Rate: 740 MB/s

 

结论

The large format revolution is here, 消除了许多争论和问题,它是否有利可图,甚至是否观众想要.

这样的成功来自于使用框架大小创建的项目,它不得不反对它.

随着技术进步,每一帧画面上捕捉的数据越来越多,大屏幕的观看体验自然会变得越来越沉浸,给博电竞app提供了一种不断改进的娱乐形式.

S唯一:

http://en.wikipedia.org/wiki/Large_format

http://shotonwhat.com/cameras/arri-alexa-65

http://shotonwhat.com/cameras/arri-alexa-lf

http://www.mzed.com/news/large-format-cameras

http://arrirentalgroup.com/alexa65/

http://www.arri.com/en/camera-systems/cameras/alexa-lf

http://www.arri.com/en/camera-systems/cameras/alexa-mini-lf